This timeline is a chronology of significant events in the history of the U.S. State of Colorado and the historical area now occupied by the state. Timeline 2020s 2010s 2000s 1990s 1980s 1970s 1960s 1950s 1940s 1930s 1920s 1910s 1900s 1890s 1880s 1870s 1860s 1850s 1840s 1830s 1820s 1810s 1800s 1790s 1780s 1770s 1760s 1730s 1690s 1680s 1590s 1540s 1520s 1510s 1490s Before 1492 See also State of Colorado Government of Colorado Governor of Colorado History of Colorado List of territorial claims and designations in Colorado Territory of Colorado Timeline of Aurora, Colorado Timeline of Boulder, Colorado Timeline of Colorado Springs, Colorado Timeline of Denver Timeline of mining in Colorado Timeline of women's suffrage in Colorado Prehistory of Colorado Outline of Colorado prehistory Southwestern archaeology Paleontology in Colorado Indigenous peoples of the North American Southwest Notes References References are included in the linked articles. External links State of Colorado website History Colorado website Timeline Timeline Timelines of states of the United States United States history timelines